Editing Caudate nucleus (section)

===Emotion===

The caudate nucleus has been implicated in responses to visual beauty, and has been suggested as one of the "neural correlates of romantic love".<ref>{{cite journal | vauthors = Ishizu T, Zeki S | title = Toward a brain-based theory of beauty | journal = PLOS ONE | volume = 6 | issue = 7 | pages = e21852 | date = May 2011 | pmid = 21755004 | pmc = 3130765 | doi = 10.1371/journal.pone.0021852 | bibcode = 2011PLoSO...621852I | veditors = Warrant EJ | doi-access = free }}</ref><ref>{{cite journal | vauthors = Aron A, Fisher H, Mashek DJ, Strong G, Li H, Brown LL | title = Reward, motivation, and emotion systems associated with early-stage intense romantic love | journal = Journal of Neurophysiology | volume = 94 | issue = 1 | pages = 327–37 | date = July 2005 | pmid = 15928068 | doi = 10.1152/jn.00838.2004 | s2cid = 396612 }}</ref>

Approach-attachment behavior and affect are also controlled by the caudate nucleus.  Cats with bilateral removal of the caudate nuclei persistently approached and followed objects, attempting to contact the target, while exhibiting a friendly disposition by the elicitation of treading of the forelimbs and purring.  The magnitude of the behavioral responses was correlated to the extent of the removal of the nuclei.  Reports of human patients with selective damage to the caudate nucleus show unilateral caudate damage resulting in loss of drive, [[obsessive-compulsive disorder]], stimulus-bound [[perseveration|perseverative]] behavior, and hyperactivity.  Most of these deficits can be classified as relating to approach-attachment behaviors, from approaching a target to romantic love.<ref name="pmid20407491" />